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ZnS Optical Components | Infrared Windows, Lenses & Custom Fabrication

ZnS Optical Components | Infrared Windows, Lenses & Custom Fabrication
ZnS Optical Components | Infrared Windows, Lenses & Custom FabricationZnS Optical Components | Infrared Windows, Lenses & Custom FabricationZnS Optical Components | Infrared Windows, Lenses & Custom FabricationZnS Optical Components | Infrared Windows, Lenses & Custom FabricationZnS Optical Components | Infrared Windows, Lenses & Custom FabricationZnS Optical Components | Infrared Windows, Lenses & Custom Fabrication
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CategoriesZnSe Infrared Lens
BrandFELIX GLASS optical glass Manufacturing base
ModelFE-GXQZ-0120
Chemical NameZinc Sulfide (ZnS)
Transmission Range3 μm – 14 μm
Refractive Index (10 μm)2.25
Density4.09 g/cm³
Mohs Hardness3.0
Coating OptionIR Anti-Reflection Coating (single side / double side)
Standard Dimensional Tolerance±0.02 mm
Surface QualityStandard optical grade
Working Temperature-40℃ ~ 80℃ (normal environment)
ApplicationsDefense & EO/IR Systems,Aerospace Infrared Optics,Laboratory
Unit PriceUS $ 6.56-9.56 / piece
FOB portSHENGZHEN SHANGHAI GUANGZHOU
Terms of PaymentL/C, D/A, D/P, Western Union
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Detail Information

ZnS Optical Components | IR Windows, Lenses & Custom ZnS Optics Manufacturer

Zinc Sulfide (ZnS) is a classic infrared optical material with outstanding transmittance across mid-wave and long-wave infrared spectra. It features stable physical properties, moderate hardness, good machinability and low thermal distortion. Our factory supplies high-purity ZnS optical blanks, windows, lenses and machined components, supporting single-side / double-side anti-reflection coating and full customization per drawings. Widely deployed in thermal imaging, infrared detection, defense EO/IR systems, industrial monitoring and scientific optical instruments.


Core Advantages 

  • Broad IR transmission range: covers 3 μm ~ 14 μm, ideal for mainstream infrared working bands
  • Good mechanical strength and scratch resistance, suitable for field and harsh working environments
  • Easy precision machining, capable of complex shape processing and tight dimensional tolerance
  • Low absorption rate and stable optical performance under normal temperature
  • Compatible with various infrared anti-reflection coatings to maximize light transmittance
  • Strict raw material screening and full inspection, consistent batch quality

Available Products

  1. ZnS Optical Windows: Round, square, rectangular flat windows; customized aperture & edge treatment
  2. ZnS Lenses: Plano-convex, double-convex, meniscus and custom infrared lenses
  3. ZnS Optical Blanks: Unprocessed raw material blocks for secondary machining
  4. Custom Machined ZnS Parts: Special profiles, grooving, drilling and shaped optical components


Key Technical Specifications

ItemParameter
Chemical NameZinc Sulfide (ZnS)
Transmission Range3 μm – 14 μm
Refractive Index (10 μm)2.25
Density4.09 g/cm³
Mohs Hardness3.0
Coating OptionIR Anti-Reflection Coating (single side / double side)
Standard Dimensional Tolerance±0.02 mm
Surface QualityStandard optical grade
Working Temperature-40℃ ~ 80℃ (normal environment)



Main Applications 

  • Defense & EO/IR Systems
  • Thermal Imaging Cameras & Infrared Detection Equipment
  • Industrial Temperature Monitoring & Non-contact Measurement
  • Aerospace Infrared Optics
  • Laboratory Infrared Spectroscopy Instruments

Custom Service 

We provide one-stop customized service for ZnS optical components:
  • Custom size, thickness, shape and radius according to CAD drawings / samples
  • Professional edge grinding, chamfering and surface finishing
  • Custom infrared coating solutions for different spectral requirements
  • Small batch trial order and mass production are both acceptable

Call to Action 

Get Custom Quote | View More Infrared Optical Components


Product Page Dedicated FAQ

Q1: What is ZnS used for in optics?

A: ZnS is a widely used infrared optical material, mainly manufactured into windows and lenses for thermal imaging, infrared detection, defense optoelectronic systems and industrial temperature measurement devices. It performs stably in the common mid and far infrared bands.

Q2: What is the difference between ZnS and ZnSe?

A: Both are mainstream IR materials. ZnS has lower cost, better mechanical strength and good machinability, fit for conventional infrared equipment. ZnSe has wider transmission range and higher transmittance, more suitable for high-precision infrared lasers and high-end optical systems.

Q3: Can you apply anti-reflection coating on ZnS components?

A: Yes. We offer professional infrared anti-reflection coating on single side or double side, which can effectively improve infrared light transmittance and reduce reflection loss.

Q4: What is your minimum order quantity for custom ZnS optics?

A: We support small batch orders. Standard parts are in stock, and customized products can start from a single piece.

Q5: Is ZnS suitable for outdoor long-term use?

A: ZnS has stable physical properties under normal temperature and dry outdoor environment. For high humidity or severe corrosive conditions, we suggest adding protective coating to extend service life.



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Custom Precision Optical & Glass Components Manufacturer – Felix Glass Co., Limited.

We supply Industrial Glass, Sapphire Optics, Optical Lenses/Prisms/Filters, Infrared IR Optics, Functional & Display Glass, N-BK7/H-K9L Optical Glass, supporting OEM mass production and laboratory custom prototypes. Flexible MOQ & free sample service available. Fill in the form to download full datasheets and get factory wholesale price within 24 hours.

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Learn more from our FAQ
What is the minimum order quantity for custom precision optical glass components?

FELIX OPTICAL GLASS offers highly flexible MOQs to support customer projects, including prototype testing, small-batch trial orders, and high-volume production. All products can be fully customized to your drawings, tolerances, and application standards. Please send us your specifications, and we will reply within 1-5 hours and provide an accurate quotation after careful evaluation within 1-2 days.

Can I get free glass samples for testing before bulk order?

Yes, our FELIX GLASS factory supports sample testing for a wide range of precision optical glass components and assemblies. The lead time for sample production is 3 to 7 working days. Please contact us today to arrange samples and obtain a customized solution that meets your needs.

What is the production lead time for custom optical glass components?

A: The production cycle for standard samples is 3-10 working days, while mass production requires 15-35 working days, depending on the complexity of the product and the order quantity. We provide reliable precision optical glass components and fast delivery services for orders from industries such as defense, industrial equipment, medical devices, shipbuilding, robotics, automotive, and aerospace. Please submit your project details so we can provide you with an accurate delivery schedule.

Are your optical glass products ISO, CE and RoHS certified?

All precision optical glass components from FELIX OPTICAL GLASS comply with ISO quality system standards as well as CE and RoHS requirements. We provide comprehensive test reports, spectral graphs, material certificates, and inspection documents for customer review. Please feel free to request complete certification details and a formal quotation at any time.

Do you offer one-stop custom optical glass processing services?

Yes. We offer a full range of precision optical glass component processing services, including CNC machining, precision grinding, optical polishing, chemical/physical tempering, vacuum coating (AR anti-reflective coating, AF anti-fingerprint coating, AG anti-glare coating, IR infrared coating), and screen printing. From raw materials to finished products, every step is completed in our own factory. Please tell us your needs, and we will provide you with the most cost-effective solution.

CONTACT US NOW FOR A QUOTE
Send an inquiry now—we'll reply promptly within 1-5 hours and provide the best formal quote within 1-2 days! Let's start building a mutually beneficial partnership…
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With 19 years of experience as a precision optical glass expert, we provide comprehensive and satisfactory customized solutions.

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